Update: Major Crime Squad Detectives have charged a 42-year-old Parmelia man with the murder of Helena Rocha.
Police investigating the disappearance of the mother of two recovered what they believed to be the remains of the 40-year-old woman today.
The remains were found in a backyard as police again searched a Parmelia house.
The forensic search today focused on the backyard and shed of the Camfield Loop property.
Neighbours said police arrived at the property yesterday afternoon.
Police would not say what led them back to the home, which has previously been searched as part of the inquiry.
Ms Rocha was last seen alive when she left her Willagee home on September 26.
She was allegedly with a man in a white hatchback and headed to the southern suburbs.
The devoted mother had not been seen since and had not contacted her teenage son and daughter, touched her bank account or used her mobile phone.
Her family and friends are convinced a mystery text sent from her phone the morning after she vanished was not written by her.
It claimed Ms Rocha had met someone she had not seen for years, had gone with them to Albany for a few days and asked the friend to look after her children.
The friend tried to call her but her mobile phone was switched off.
Police have previously searched the Parmelia home, a southern suburbs rubbish tip, bush near Kwinana train station, Parmelia and Kwinana bushland and scrub near St Vincent Primary School.